SAP Software Change Registration (SSCR) is used to manage all changes by the customer to the SAP source code and SAP Dictionary objects. Everytime you register SAP issues a 20-digit registration key, which is issued for each object and SAP provides no guarantee for these types of modifications.
- This supports rapid error location and correction
- Prevents unintentional system modification
- Ensures system stability
- Overview of all the modifications facilitates the processing of release upgrades.
Here is a quick direct link to SSCR at SAP Support Portal.